Complete the text with the missing parts of the idioms.

Write one word in each gap.

To be honest, biology is definitely my [ ] of tea. I enjoy learning about how nature works. All the tests and exams are a piece of [ ] for me. But I've been having some troubles with biology recently. I didn't do my homework (just once!), and my friend Judy spilled the [ ] and told the teacher about it.

The teacher took her words with a [ ] of salt and decided to check my notebook himself. There was no homework in it! So, I got a D and now I need to take extra classes to improve the mark.

I understand there's no point in crying [ ] spilt milk, but I'm so angry with Judy!!!